Duplex lighting system



T. Boel. DUPLEXLIGHTING SYSTEM.

APPLICATION FILED MAY 24, 1920.

Ahausted or the lamp damaged, there isno UNrrrn starts" artnr ortica.

TONY BOGI, 0F NANTY GLC, PENNSYLVANIA.

DUPLEX Lrenrme srsrnn.

Speccation of Letters `Patent. Fajnted- NOV. 9, 1920.

Appncationnied May 24, 192e. serial No. 383,940.

dark places.

lVith thepresent form of acetylene lamps used by miners, should the gasbecome" eX- means to provide light for the miner, thus requiring theminer to leave his worlr and have the lamp repaired or replaced. j

It is therefore an object of the 'invention to provide means forilluminating purposes that can be readily put into operation should thegas lamp be rendered useless.

Another object of the invention is to provide a duplex lighting systemwhereby the mechanism of one of the illuminating means provides asupport for: the otherV illuminating means. y

Another obj ect of the invention is to provide a lighting systemof thischaracter wherein the casingfor one of the energizing means serves tohold the other illuminating means on a support or head-gear. j

Another object of theinvention is to pro- A vide a lamp forming onesource oi' illumr nation and a second lighting system forming a secondsource of illumination, the casing of the lamp and reflector thereforeforming part oi the circuit of the second mentioned illuminating means.i l

A still further object orp the invention is to provide a lighting systemusing electrical energy and capable of being incorporated in variousforms of lamps to be 'used instead of or when the lamps are not in use.

With these and other objects in view, the Y invention consists intheimproved construction and arrangement of parts to be herein- ,after moreparticularly described, fully j .i claimed and illustrated in theaccompanying drawings, in which: Y e p `Figure 1 is a side elevation ofan acetylene gas lamp with the inventionapplied,

Fig. 2 is a horizontal sectional view,

` Fig. 3 is a fragmentary perspectiveview*V Vrear portion or" ber 6.

of a head-gear showing the construction of the support, and

Fig. t is a sectional view of the battery casing showing the contactmeans.

Referring to the drawings, A designates a lamp preferably of theacetylene type,and B the reflector therefor. The lamp e. includes abracket C which entends rearwardly loit the lamp and is intended to besupported on a head-gear D including a support E. rlhe'suppcrrt isprovided with a laterally er;- tendmg slot 5 which penetrates one edgeot the support, the mouth of the slot being restricted.

ln order to provide illuminating means when the lamp is not in order orthe gas thereof has become exhausted, l provide an illuminating means 5,comprising the lamp receiving portion 6 which is embedded in an opening'7 formed in the reilector E adjacent the illuminating means or' thelamp.

.The member 6 `is not insulated from the reflector, as the reflector isintended to serve as electrical conducting means for the member 6.

The other portion or' the socket member comprises a conduit 8 which isbiiurcated at one -end and pivotally connected to an arm 9 carried bythe exterior portion of the lamp A. rl`he end portion 10 of the conduitS is externally threaded and adapted to receive an insulating sleeve 11,the end portion 12 of the insulating sleeve including a collar adaptedto engage the the lamp' receiving mem- Projecting from the lamp casingis an v arm 13 towhich a cylindrical body v`14 is secured.

rin opening 15 is formed in the cylindrical body 1e and is adapted topermit unobstructedmovement oit theinger piece 16 carried by a contactmember 17 disposed within'the cylindrical body 1e. The cylindrical body14.- and the contact member 17 `cooperate to provide a switch by `meansof which the current is controlled.

j A casing rearwardly or the lamp A. Thiscasing is composed oi twopivotal connected sections provided with a fastener F so that the casing may be readily opened when desired. rlhe end 19 oi' the casing iscomposed of insulating material and "is intended to receive aV pair ofContact members 20. Energizing means such as a battery 21 is intended tobe disposed withinthe casing 18 with the ter-`4 18, is secured to thebracket C' minals thereof in engagement with the contacts 20.y Leadingfrom the contacts eXte- Vriorly of the casing 18 is a pair of currentconducting wires 22 and 23. The end portion of the wire 22 is extendedto the conduit member 8 and is passed tlirouglithebifur-x cated portionadjacent the pivotal connection of said conduit to the arm 9 and intosaid conduit.` Insulating means 211 are disposed around the ends of thewire 22 so as to prevent closing of the circuit through the conduitmember 8. rlhe end portion of said wire is provided with a spring 25 tothe end of which a contact plate 26, is secured. The uninsulated end ofthe wire 22 and the spring 25 together with the plate 26 are disposedwithin the insulating sleeve 11, with the plate 26 closely adjacent thelamp receiving member 6. rThe wire 23 is extended through one end of thecylindrical body 1li and insulated from said body. The contact member 17of the switch is intended to engage the end of the wire 23 to close thecircuit'wlien desired.

A lamp 27 is screwed into the lamp receiving memberv 6, with the endthereof in contact with the plate 26. When it is desired to energize thelamp 27, the switch contact 17 is moved toward the end of the wire 23.This causes the closing of the circuit through the cylindrical body 14,arm 13, lamp casing A, reflector B and lamp receiving member 6. Theother portion of the circuit being formed by the wire 22, spring 25,'andplate 26 in contact with the end of the lamp 27. It will 'thus` be seenthat the lamp casing Aand reflector 'B are utilized in the circuit ofthe lamp 27 thereby eliminating unnecessary wire andrendering the devicesimple.

In applying the lamp to a support, such as thehead-gear D, the bracket Cis passed through-the slot' Eand is prevented from disengagementtherefrom by the restricted opening of the slot. The casing 18 is-thereby positioned between the support E andthe head-gearD to preventdisengagement of the lamp from the support so that it thereby serves twopurposes.

To properly position the socket member 6' with respect to the relectorB,a supporting member 28' is carried by the socket member 6 rearwardly ofthe reflector B, said member including an extension 29'adapted to engagethe insulating vsleeve 11. yThis member may be made of metaland serve as`*an additional means for conductingk electrical energy to the socketmember'6.

An important-feature of the invention is that the casing of thelamp-notonly serves as a support for the second illuminating means, but alsoserves as means by which current is transmitted to the lamp of thesecond illuminating means. The second illuminating means also cooperateswith the lamp by. perv mitting the casing containing the energizingmeans therefor to serve as a fastening or holding device to preventdisengagement of the lamp from the support on the head-gear. In.addition to this the reiiector of the lamp Vis utilized to provide asupport for the socket orV lamp receiving member of the secondilluminating means. Notwithstanding these important features, theinvention is simple in construction and can be incorporated in variousforms of lamps to be used either as a separate lighting arrangement orwhen the lamp is out of order.

1. A duplex lighting system comprising a 'lamp casing, a reflectorcarried by said casing, a source of illumination carried by the casing,a second source of illumination carried by the reector, a means carriedby the first mentioned casing for supplying energy` to the second sourceof illumination, and means carried by the first mentioned casing forcontrolling a supply of energy to the second source of illumination.

2. In a duplex lighting system, tliecombination with al lamp casing andreflector, said lamp providing one source of illumination, va secondsource ofillumination.carried by the reflector, a casing carried byVsaid lamp casing, energizingl means disposed Within said casing,electrical conducting Vmembers carried by said energizing means,

a switch carried by said lamp casing, one .of said conducting lmembersbeing connected to the switch andV insulated therefrom, the otherconducting member being disposed in engagement Within the secondmentioned source of illumination, said switchV closing the circuitthrough yt'he lamp casing yreflector and lamp socket.

3. In a duplex lighting system, the combination with a support, abracketon said support, a slot in said bracket, of a lamp casingincluding a' bracket, a casing carried by said bracket, Asaid bracketbeing disposed? in the slot of the support, said Supportbeing disposedbetween the casingpand the lamp, a source ofillumination provided forsaid lamp, a second source of illumination carriedby the casing,energizing means dis posed within the said casing, means forV conveyingenergy from said energizing means to the second source of illumination,and means carried by said casing for controlling the supply, of energyto the second source of illumination. v

4. In a duplex lighting system, the combination with a lamp casingincluding a reflector, arbracket carried the lamp, of a lamp receivingmember disposed in said reflector, a lamp in said member,y a conduitmember, an insulatingjsleeve connecting the lamp receiving member to theconduit, a casing 'carried by the bracket of thelamp, energizing meansdisposed within the saidv casing, wires leading from said meansto the 1second mentioned lamp, one of said wires extending through the conduitand being insulated therefrom, yieldable contact means carried by theend of said wire for engagement with said lamp, the other wire beingconnected to the switch and insulated therefrom, said switch closing thecircuit through the lamp casing reflector and lamp receiving member'.

5. A duplex lighting system comprising a metal lamp casing and relector,illuminating means projecting from the casing through the reflector, asocket member, one portion of said socket member being carried by thereflector in circuit therewith and arranged to receive a lamp, the otherportion of said socket member forming a conduit and being insulated fromthe lamp receiving portion and pivotally connected to the lamp casing, aswitch carried by the lamp casing7 the body of said switch being incircuit with the lamp casing, energizing means carried by the lampcasing for energizing said lamp, current conducting wires connected tosaid energizing means, one of said wires being insulated from andextended through said conduit, resilient contact means on the end ofsaid wire within the insulated portion of the socket7 the other wirebeing connected to and insulated from the body of said switch, means insaid switch for closing the circuit through the body of the switch, lamp-casing reflector and lamp receiving member of the socket.

In testimony whereof I hereunto alix my signature,

TONY BOGI.

